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HTML5 / CSS3 : Mythes et realite

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Beaucoup d’incompréhensions accompagnent les nouveaux et excitants langages HTML5 et CSS3.
Raphaël se propose de vous en faire découvrir les grandes lignes, de démêler le vrai du faux et les nombreuses idées reçues : “HTML5 c'est encore trop tôt”, “On ne peut pas faire de HTML5 sans CSS3”, “Avec HTML5, je devrai tout réapprendre depuis zéro”, “CSS3 ne fonctionne pas sur IE”, “CSS3 c'est que de la décoration”, etc.

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HTML5 / CSS3 : Mythes et realite

  1. 1. TM L5 et CSS3H éMyth es et réalit Petit tour des principales idées reçues Raphaël Goetter Alsacréations
  2. 2. Idées reçues ?1. HTML5 cest encore trop tôt !2. CSS3 est très différent de CSS23. HTML5 et CSS3, cest pas pareil ?!4. HTML5 est devenu trop complexe !5. CSS3 ne fonctionne pas sur Internet Explorer !6. CSS3 cest que de la décoration, nan ?7. HTML5 et CSS3 seront finalisés en 2022 !
  3. 3. idée reçue n°1● HTML5 cest e ncore trop tôt ! « HTML5 cest encore trop tôt !
  4. 4. idée reçue n°1● HTML5 cest e ncore trop tôt ! « Ça dépend...
  5. 5. idée reçue n°1● HTML5 cest e ncore trop tôt ! De nombreux grands sites sont passés à HTML5 : Google, Yahoo, Facebook, Youtube, Wikipedia, Twitter, etc. Mais...
  6. 6. idée reçue n°1● HTML5 cest e ncore trop tôt ! 34% des 100 plus grands sites mondiaux Mais...
  7. 7. idée reçue n°1● HTML5 cest e ncore trop tôt ! Support HTML5 actuellement :
  8. 8. idée reçue n°1● HTML5 cest e ncore trop tôt ! <!DOCTYPE html>
  9. 9. idée reçue n°1● HTML5 cest e ncore trop tôt !
  10. 10. idée reçue n°1● HTML5 cest e ncore trop tôt !
  11. 11. idée reçue n°1● HTML5 cest e ncore trop tôt ! <!--[if lt IE 9]> <script src="scripts/html5shim.js"></script> <![endif]--> document.createElement("header"); document.createElement("footer"); document.createElement("section"); document.createElement("aside"); document.createElement("nav"); ... Solution de repli ?
  12. 12. idée reçue n°2● CSS3 est très différent de CSS2 « CSS3 est très différent de CSS2
  13. 13. idée reçue n°2● CSS3 est très différent de CSS2 « FAUX !
  14. 14. idée reçue n°2● CSS3 est très différent de CSS2 « CSS3 » = CSS1 + CSS2 + nouveautés
  15. 15. 3, cest pas pareil ?! idée reçue n°3● HTML5 et CSS « HTML5 et CSS3, cest pas pareil ?!
  16. 16. 3, cest pas pareil ?! idée reçue n°3● HTML5 et CSS « FAUX !
  17. 17. 3, cest pas pareil ?! idée reçue n°3● HTML5 et CSS « HTML5 » = HTML5 + CSS3 + JavaScript ? http://www.w3.org/html/logo/ Mais...
  18. 18. 3, cest pas pareil ?! idée reçue n°3● HTML5 et CSS http://www.w3.org/html/logo/
  19. 19. 3, cest pas pareil ?! idée reçue n°3● HTML5 et CSS Les spécifications sont complètement indépendantes (et valides) : ✔ HTML4 + CSS2 ✔ HTML4 + CSS3 ✔ XHTML + CSS2 ✔ XHTML + CSS3 ✔ HTML5 + CSS2 ✔ etc.
  20. 20. trop complexe ! idée reçue n°4● HTML5 est devenu « HTML5 est devenu trop complexe !
  21. 21. trop complexe ! idée reçue n°4● HTML5 est devenu « Ça dépend...
  22. 22. trop complexe ! idée reçue n°4● HTML5 est devenu Le métier dintégrateur devient-il celui de développeur front-end (par la force des choses) ?
  23. 23. trop complexe ! idée reçue n°4● HTML5 est devenu • Doctype • <!DOCTYPE html> • Sémantique • <header> • <footer> • <nav> • <aside> • <figure> • <section>…
  24. 24. trop complexe ! idée reçue n°4● HTML5 est devenu • Doctype • Formulaires • <!DOCTYPE html> • email, URL, number color, search, range Sémantique • • • date, month, time,... • <header> • <footer> • Attributs • <nav> • placeholder • <aside> • autofocus • <figure> • required • <section>… • contenteditable • draggable...
  25. 25. trop complexe ! idée reçue n°4● HTML5 est devenu • Accessibilité • APIs • ARIA • Géolocalisation Drag & drop Média • • • History • <audio> • Web storage • <video> • Web offline • <canvas> • File access • SVG • Touch Event • Vibration • Web workers,...
  26. 26. trop complexe ! idée reçue n°4● HTML5 est devenu
  27. 27. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! « CSS3 ne fonctionne pas sur IE !
  28. 28. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! « FAUX !
  29. 29. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! CSS3 est très bien supporté... par IE10 !
  30. 30. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! • Internet Explorer 10 • flexbox layout • grid layout • text-shadow • transformations 2D • transformations 3D • etc.
  31. 31. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! • Internet Explorer 10 • Internet Explorer 9 • flexbox layout • multicolonnes • grid layout • border-radius • text-shadow • box-shadow • transformations 2D • opacity / RGBa • transformations 3D • multiple backgrounds • etc. • media queries • :last-child, :nth- child, :only-child, :target, :not, ...
  32. 32. idée reçue n°5● CSS3 ne fonct ionne pas sur IE ! • Internet Explorer 8 • Internet Explorer 6 • box-sizing • @font-face • text-overflow • Internet Explorer 7 • word-wrap • overflow-x, overflow-y • + filters proprio... • sélecteurs [att^=val], [att*=val], [att$=val] • E~F
  33. 33. la décoration, nan ? idée reçue n°6● CSS3 cest que de « CSS3 cest que de la décoration, nan ?
  34. 34. la décoration, nan ? idée reçue n°6● CSS3 cest que de « FAUX !
  35. 35. la décoration, nan ? idée reçue n°6● CSS3 cest que de Tout ceux qui ont dit « vrai » ont un gage
  36. 36. la décoration, nan ? idée reçue n°6● CSS3 cest que de • décoration • border-radius • opacity • box-shadow • text-shadow • border-image • background-size • multiple backgrounds • ...
  37. 37. la décoration, nan ? idée reçue n°6● CSS3 cest que de • décoration • contenu et textes • border-radius • @font-face • opacity • word-wrap • box-shadow • hyphens • text-shadow • text-overflow • border-image • font-smoothing • background-size • ligatures • multiple backgrounds • ... • ...
  38. 38. la décoration, nan ? idée reçue n°6● CSS3 cest que de • positionnement • transformations • multicolonnes • rotate • flexbox layout • skew • grid layout • scale • regions • matrix • exclusions • ... et aussi en 3D • media queries • @media screen and (max-width: 480px)
  39. 39. la décoration, nan ? idée reçue n°6● CSS3 cest que de • Transitions, Animations • sélecteurs • vitesse • A~B • accélération • [attr*=val] • répétitions, ... • :not • :target • unités et fonctions • :last-child, :nth-child • rem, fr, vw, vh, vmin, • :only-child vmax, deg, rad, s, ms • :enabled, :disabled, • calc(100%-50px) :checked, :required • etc. • :valid, :invalid, ...
  40. 40. 3 finalisés en 2022 ! idée reçue n°7● HTML5 et CSS « HTML5 et CSS3 seront finalisés en 2022 !
  41. 41. 3 finalisés en 2022 ! idée reçue n°7● HTML5 et CSS « FAUX !
  42. 42. 3 finalisés en 2022 ! idée reçue n°7● HTML5 et CSS
  43. 43. 3 finalisés en 2022 ! idée reçue n°7● HTML5 et CSS ✔ HTML5.0 → 2014 ✔ HTML5 .1 → 2016 ✔ CSS3 → ???
  44. 44. Et voilà !
  45. 45. Crédits● Illustrations : Fotolia (majoritairement)● Polices : ● Segoe UI light ● Georgia (citations)
  46. 46. Merci ! www.goetter.fr www.alsacreations.com www.knacss.com www.ie7nomore.com www.thinkmobilefirst.net @goetter
  47. 47. UIZS !Q CSHTML &
  48. 48. Question 1Citez lun des deux co-inventeurs du langage css
  49. 49. Question 1Citez lun des deux co-inventeurs du langage css(indice : ils sont deux)
  50. 50. Question 1 Bert Bos Hâkon Lie
  51. 51. Question 2 Quel navigateur fut initialement développé dans cette ferme danoise ?
  52. 52. Question 2(indice : il est connu !)
  53. 53. Question 2Google Chromepar Lars Bak qui ne voulait pas sexpatrierpour travailler en Californie
  54. 54. Question 3 En quelle année CSS 2.1 est-il devenu une recommandation officielle (Rec) ?
  55. 55. Question 3(indice : pas si longtemps que ça)
  56. 56. Question 3 Mai 2011

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